Mercurial > hg > CbC > CbC_llvm
view test/Transforms/LoopStrengthReduce/dead-phi.ll @ 146:3fc4d5c3e21e
set tail call flag for code segment in CGCAll
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Sun, 23 Dec 2018 19:23:36 +0900 |
parents | 95c75e76d11b |
children |
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; RUN: opt < %s -loop-reduce -S | grep phi | count 1 define void @foo(i32 %n) { entry: br label %loop loop: %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] ; These three instructions form an isolated cycle and can be deleted. %j = phi i32 [ 0, %entry ], [ %j.y, %loop ] %j.x = add i32 %j, 1 %j.y = mul i32 %j.x, 2 %i.next = add i32 %i, 1 %c = icmp ne i32 %i.next, %n br i1 %c, label %loop, label %exit exit: ret void }